富平县地处渭北高原,县境北部属土石山区,其面积达370平方公里,地面植被差,每逢汛期,水土流失严重.在岔口年平均入县境洪水量为6000万立米.由此可见我县洪水资源是很丰富的.千百年来,我县民间就有“引九峪十八岔之水肥田”的佳传.据县志记载,早在二千三百年前的秦代,赵老峪一带的劳动人民就开始利用洪沙资源,引洪漫地了.据记载赵老峪的“东二渠”为秦大将王翦时所修,大水峪的“李贤渠” Fuping County is located in the Weibei Plateau, north of the county is an area of ​​rock and soil, an area of ​​370 square kilometers, the ground vegetation is poor, every flood season, soil erosion is serious.At the junction of the average annual flood into the county is 60 million cubic meters. We can see that the county flood resources are very rich .For thousands of years, my county folk have “cited nine valley 18 bifurcation of the water and fertile fields.” According to county records, as early as 2300 years ago, Qin Dynasty , Zhao Laoyu area working people began to use Hongsha resources, cited flood.According to Zhao Laoyu’s “East two canals” for the repair of General Wang Qin, Da Shuiyu “Li Xianqu”